My wife, sister-in-law and 13-year-old daughter and I took the yaks out yesterday to our favorite cove on Lake Travis (for kayaking that is). It's very easily accessed from Cypress Creek Park, a small county park at the intersection of Bullick Hollow Road and FM 2769 (Volente Road). This cove is great for kayaking because it is all "no wake".
It was a perfect day for kayaking! My daughter put up slide show of the trip at YouTube:
YouTube - kayaking on the lake
By the way, don't even consider camping at this park, unless road noise doesn't bother you. Also, the only facilities are latrines. There is no running water.
JohnK